This study aimed to analyze the significance of the influence of Service Quality, Relationship Marketing, and Trust on Loyalty with Customer Satisfaction As Intervening Variable at PT. Bank Syariah Mandiri. This research is a type of applied research of causality. Methods of data collection used were questionnaires, interviews, and literature study. Population in this research is all customer of savings at PT. Bank Syariah Mandiri. Sampling technique used is judgmental sampling method. The sample in this study amounted to 215 customers of savings at PT. Bank Syariah Mandiri. Data analysis model using Structural Equation Model (SEM) with analysis technique using Confirmatory Factor Analysis and Regression Weight which operated by AMOS 22.0 program. The results of this study indicate that the service quality, relationship marketing, and trust have a positive and significant influence on customer satisfaction, as well as customer satisfaction that has a positive and significant influence on loyalty.